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研究生:沈佑龍
研究生(外文):Yu-Lung Shen
論文名稱:應用OFDM-256多重擷取技術於IEEE802.16(WiMax)協定中的開發與研究
論文名稱(外文):The Development and Study in Applying OFDM-256 Access Techniques Combining with IEEE802.16 (WiMax) Protocols
指導教授:陳雍宗陳雍宗引用關係
指導教授(外文):Joy Iong-Zong Chen
學位類別:碩士
校院名稱:大葉大學
系所名稱:電信工程學系碩士在職專班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:58
中文關鍵詞:正交分頻多工系統 (OFDM)Weibull 衰落通道位元錯誤率 (BER)選擇性合成 (selective combining)
外文關鍵詞:OFDMWeibull fading channelsBERSC combining
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中文摘要

本論文主旨在研究正交分頻多工(orthogonal frequency division multiplexing, OFDM) 系統,工作於複雜且失真的多工衰落通道 (fading channel) 內,效能分析運作中的 OFDM 系統,工作在路徑分支具有相互關係之上的Weibull分布,而且在任意的衰落參數進行通道測試。在此論文中所提的內容,係研究探討耙式接收機(RAKE receiver),並提出機率密度函數 (probability density function, PDF) 與累積分布函數 (cumulative distribution function, CDF),最後為了驗證推導方程式的正確性,並以相關數據證實,也與Weibull衰落分布具相關性的方程式進行比對與分析。
ABSTRACT

It is known that the channels fading will introduce a complicated multiple distortion and definitely additive noise component for an OFDM (orthogonal frequency division multiplexing) system. The performance analysis of OFDM system working over correlated-Weibull fading channels with arbitrary parameters was studied in the letter. Some of the exact closed-form expressions of the system BER are derived for the OFDM system under the situations, which based on the determination of the PDF (probability density function) and CDF (cumulative distribution function) at the out of a RAKE receiver. The obtained formulas included the Weibull fading correlation scenario. The numerical evaluation is also held for proving the correctness of the derived equations.
目錄

封面內頁
簽名頁
博碩士論文暨電子檔案上網授權書.............iii
中文摘要........................iv
英文摘要........................v
誌謝..........................vi
目錄..........................vii
圖目錄.........................ix
表目錄.........................xi

第一章 緒論.......................1
  1.1 研究動機與目的.................1
1.2 論文綱要....................2
第二章OFDM正交分頻多工系統..............3
2.1 OFDM基本原理..................3
2.2 離散傅立葉轉換.................6
第三章 無線通訊衰落通道.................9
3.1 無線通道信號衰落.................9
3.2 多重路徑及多重衰落[8] .............10
3.3 多重路徑衰落所造成的效應............10
3.4 衰落的形式分類.................11
3.4.1 小尺度衰落[9] ...............11
3.4.2 大尺度衰落................14
3.5 衰落通道的數學模型...............19
3.6 通道統計分佈..................22
3.6.1 Normal(Gaussian)衰落分佈..........22
3.6.2 Rayleigh衰落分佈..............25
3.6.3 Rice衰落分佈................27
3.6.4 Nakagami-m衰落分佈............32
第四章 分集合成技術..................36
4.1極化分集(polarization diversity)...........37
4.2 頻率分集....................37
4.3 空間分集....................38
4.3.1 選擇性合成(selective combining, SC)......39
4.3.2 等增益合成(equal gain combining, EGC).....40
4.3.3 最大比例合成(maximal ratio combining, MRC)..42
4.4 時間分集....................43
第五章 SC在分支相關通訊環境中研究...........45
5.1 SC相關通道...................45
5.2 通道模型....................46
5.3 分析結果....................51
5.4 結論......................54
參考文獻........................55
參考文獻

[1]R. W. Chang, “Synthesis if Band-limited Orthogonal Signals for Multichannel Data Trans.”, BSTJ, vol. 46, pp. 1775-1796, Dec. 1966.
[2]J. G. Proakis, “Digital Communications”, 3rd ed. New York McGraw Hill, 1995.
[3]Zhengjiu Kang, Kung Yao, Flavio Lorenzelli, “Nakagami-m Fading Modeling in the Frequency Domain for OFDM System Analysis” IEEE Trans. on Commun. letters, vol. 7, no. 10, Oct. 2003.
[4]Yunxia Chen, Chintha Tellambura, “Distribution Functions od Selection Combiner Output in Equally Correlated Rayleigh, Rician, and Nakagami-m Fading Channels”, IEEE Trans. on Commun., vol. 52, no. 11, Nov. 2004.
[5]P. Lombardo et al. “MRC Performance for Binary Signals in Nakagami Fading with General Branch Correlation”, IEEE Trans. on Commun., vol. 47, no.1, pp. 44-52, 1999.
[6]M. Nakagami-m, “The m-distribution-A General Formula of Intensity Distribution of Rapid Fading in Statistical Methods in Radio Wave Propagation”, W. G.. Hoffman, Ed. Oxford, U.K.:Pergamon, 1960.
[7]H. Suzuki, “A Statistical Model for Urban Radio Propagation”, IEEE Trans. on Commun., vol. 25, no. 7, pp. 673-680, July 1977.
[8]Matthias Pätzold, “Mobile Fading Channel”, Wiley, pp.3-7, 2002.
[9]S. Bernard, “Digital Communications Fundamentals and Applications”, Prentice Hall International, Inc, pp. 962-9662001.
[10]T. S. Rappaport, “Wireless Communications Principles and Practice”, Prentice Hall PTR, New Jersey, 1996.
[11]B. Sklar, “Rayleigh Fading Channels in Mobile Digital Communication Systems Part 1: Characterization”, IEEE Commun. Magazine, pp. 90-100, July 1997.
[12]K. Feher, “Wireless Digital Communications:Modulation and Spread Spectrum Applications”, Prentice Hall PTR, New Jersey, 1995.
[13]Yacoub, M. D., “Foundations of Mobile Radio Engineering”, CRC Press Inc, 1993.
[14]Mondre, E., “Complex and Envelope Covariance for Rician Fading Communication Channels Communications”, IEEE Trans. on Commun., vol. 19, issue: 1, pp. 80-84, Feb. 1971.
[15]D. Middle, “An Introduction to Statistical Communication Systems and Techniques”, New York:McGraw-Hill, 1966.
[16]I. S. Gradshteyn and I. M. Ryzhik, “Table of Integrals, Series, and Products, 5th ed.” New York:Academic, 1994.
[17]M. K. Simon and M.-S. Alouini, “Digital Communications over Generalized Fading Channels:A Unified Approach to Performance Analysis,” Wiley, New York, 2000.
[18]C. C. Tan and N. C. Beaulieu, “Infinite Series Representation of the Bivariate Rayleigh and Nakagami-m Distributions.” IEEE Trans. on Commun., vol. 45, pp. 1159-1161, Oct. 1997.
[19]Peterson. R. L., Ziemer, R. E., and Borth, D. E., “Introduction to Spread Spectrum Communications,” New York:McGraw-Hill, 1995.
[20] Alan Triggs, Notes for Wireless, Cellular & Personal Telecommunications, Lecture 7, Southern Methodist University, Fall 2001.
[21] Sklar, B., Digital Communications: Fundamental and Applications, 2nd ed. Prentice Hall, Upper Saddle River, NJ, 2001.
[22] Van Nee, R. & Prasad R., OFDM for Wireless Multimedia Communications, Artech House, Norwood, MA, 2000.
[23] Simon, M. K., and Alouini, M. -S., Digital communication over fading channel 1st ed. John Wiley, New York, 2000.
[24] Y.-K. Ko, M.-S. Alouini, and M. K. Simon, “Average SNR of dual selection combining over correlated Nakagami-mfading channels,” IEEE Commun. Lett., vol. 4, pp. 12-14, Jan. 2000.
[25] Abu-Dayya, A. A., and Beaulieu, N. C., “Analysis of switched diversity systems on generalized -fading channels,” IEEE Trans. on Commun., vol. 42, pp. 1813-1831, Nov. 1994.
[26] Tellambura, C., Annamalai, A., and Bhargava, V. K., “Unified analysis of switched diversity systems in independent and correlated fading channels,” IEEE Trans. Commun., vol. 49, pp. 1955-1965, Nov. 2001.
[27] H. Hashemi, “The Indoor Radio Propagation Channel,” Proc. IEEE, vol. 81, pp. 943-968, July 1993.
[28] N. S. Adawi, H. L. Bertoni, J. R. Child, W. A. Daniel, J. E. Dettra, R. P. Eckert, E. H. Flath Jr., R. T. Forrest, W. C. Y. Lee, S. R. McConoughey, J. P. Murray, H. Sachs, G. L. Schrenk, N. H. Shepherd and F. D. Shipley, “Coverage prediction for mobile radio systems operating in the 800/900 MHz frequency range,” IEEE Trans. on Vehicular Technology, vol. 37, no. 1, pp. 3-72, Feb. 1988.
[29] A. Taneda, J. Takada, and K. Araki, “The problem of the fading model selection,” IEICE Trans. on Commun., vol. E84-B, no. 3, pp.355-358, Mar. 2001.
[30] Bury, K., Statistical Distributions in Engineering, Cambridge University. Press, 1999.
[31] J. C. Lu and G. K. Bhatacharya, “Some new constructions of bivariate Weibull models,” Ann. Inst. Stat. Math., vol. 42, no. 3, pp. 543-559, 1990.
[32] Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, P. Takis Mathiopoulos, George S. Tombras, “Performance analysis of dual selection diversity in correlated Weibull fading channels,” IEEE Trans. on Commun., vol. 52, no. 7, pp. 1063-1067, Jul. 2004.
[33] L. Wan and V. K. Dubey, “BER Performance of OFDM System Over Frequency Nonselective Fast Ricean Fading Channels,” IEEE Commun. Lett., vol. 5, no. 1, pp. 19-21, Jan. 2001.
[34] K. Dietze, C. B. Dietrich, and W. L. Stutzman, “Analysis of a two-branch maximal and selection diversity system with unequal SNRs and correlated inputs for a Rayleigh fading channel,” IEEE Trans on. Wireless Commun., vol. 1, pp. 274-281, Apr. 2002.
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